Machine for rectifying balls.



No. 632,403. Patehted Sept. 5, I899. A. H. DUPEYRUN &. E. A. PHALEMPIN. MACHINE FDR BECTIFYING BALLS.

(Application filed Mar. 15, 1898.)

(No Model.)

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UNITED STATES PATENT QFFICE.

AUGUSTE HENRI DUPEYRON AND EDOUARD ALPHONSE PHALEMPIN, OF

PARIS, FRANCE.

MACHINE FOR RECTIFYING BALLS.

SPECIFICATION forming part of Letters Patent No. 632,403, dated September 5, 1899.

Application filed March 15, 1898. Serial No, 673,966. (No model.)

To all whom it may concern.-

Be it known that we, AUGUSTE HENRI DU- PEYRON and EDOUARD ALPHoNsE PHALEM- PIN, mechanical engineers, citizens of the Republic of France, residing at Rue Herkampf No. 14, Paris, France, have invented a certain new and useful Improved Machine for Bringing to a Spherical Form the Balls Used in Ball-Bearings, of which the following is a specification.

This invention relates to an improved machine for rectifying the rolling balls for oycles and other applications in which we use a new principle which secures the spherical form in a simple and precise manner simultaneously with a considerable discharge.

In the annexed drawings, Figure 1 is an end view of the machine. Fig. 2 is a view in elevation, and Fig. 3 is a plan view, of the same. Fig. at is a detail view of one of the two rectifying-cylinders. Fig. 5 is a diagram which will be described hereinafter.

In Fig. 5 there are shown two plates A and B, provided with diametrical grooves a and b of opposite directions. These grooves taper,the one, a, downward and the other, b, upward. Besides, both are finely striated on the whole or part of their length'in order to operate during their to-and-fro movement on one another to remove irregularities from the surface of the ball being treated. At the beginning of the operation the arris y g of the plate B is placed some millimeters under the arris 09 0c of the plate A. A roughly-formed ball is placed in the top of the groove a, from where it engages at the same time in the under part of the groove b. At this moment the plate A rises, while B sinks, and the ball passes at once along the two grooves, remaining at their intersection. It is rolled there on all its sides and is smoothed and leaves in an absolutely spherical form. This is the principle of the machine; but in practice the plates are replaced by cylinders with helicoidal grooves turning against one another, which comes to the same, as will be understood from the following description.

The essential organs of the machine are two cylinders A and B, Figs. 1 to at, the axles of which carry, respectively, pinions a and b, gearing with the same toothed wheel 0, on

I ing-pulley c of the machine.

the arbor of which there is mounted the driv- The grooves a and b of the cylinders are helicoidal grooves of the same pitch. They can be optionally of same dimension orof different dimensions, according as one wants to make simultaneously all the balls of the same diameter or of diiferent diameter. Their surface is striated in order to smooth and reduce to sphericity the balls being treated. They may be of any number. In the drawings there are three shown for example.

The roughly-formed balls are brought to the cylinders A and B by a distributor which consists of a funnel into which one places a certain quantity. These roughly-formed balls are brought through tubes '5 i into the sockets of a wheel 75, the axle of which carries a ratchet-wheel Z. There are of course as many rows of sockets on the wheel It as there are grooves on each cylinder, and in accordance with each of them there are disposed tubes k k which bring, respectively, the rough ball thrown in by each row of sockets in convenient positions between the cylinders A and Bthat is to say, at the start of the grooves a and b.

On the axle b of the cylinder B there is disposed an eccentric m, the 'rod m of which operates a lever 'n, which carries the dog 0 with articulated hook 0,.which communicates the movement to the ratchet-wheel Z when it rises; but when it sinks the hook 0 slides on the teeth of the ratchet-wheel by turning on its articulation Without operating the same. The axle of each cylinder reposes against a bush of steel 5, carried by a cylindrical piece 8, which can take a movement of transmission in the interior of a socket s when one turns the screw t in one or the other direction. This arrangement allows of pressing conveniently the bush 3 against the axle of the corresponding cylinder-in order to oppose any transmission movement of this latter.

Operation: The toothed wheel 0 communicates a movement of revolution of the same direction to the wheels 0. and b and consequently to the cylinders A and B; The eccentric m communicates an oscillating movement to the lever n, which makes thedog 0 alternately rise and sink, which at each risv ing turns the ratchet-wheel Z one tooth farning of the grooves Ct at a of, the cylinders A and B. Each rough ball is taken by the corresponding groove of each of the cylinders. It remains constantly at the intersection of these two grooves on the generating-line of contact of these cylinders until it has-arrived at the extremities of the grooves and comes into the hollows a when the grooves end, and escapes rectified from the machine and is received in any receptacle. During its passage in the grooves a the rough ball turns in all directions and is cut by the striations in the grooves, which grooves are tapered in order to bring the ball to the desired diameter.

Having thus described our invention, what we claim is 1. In an improved machine for rectifying balls, with rotary juxtaposed cylinders provided with striated helicoidal grooves, a distributer comprising a Wheel With one or more rows of sockets, tubes with regard to each row of sockets ending beneath at the entrances of the different helicoidal grooves of the cylinders, tubes starting from a funnel and ending beneath at the different rows of sockets, a ratchet-wheel mounted on the axle of the wheel with sockets in engagement with a dog arranged at the extremity of the articulated lever at the rod of an eccentric keyed on the axle of one of the gearings of the machine, substantially as described and for the purpose set forth.

2. In an improved machine for rectifying balls with rotary juxtaposed cylinders provided with striated helicoidal grooves, a distributer comprising a wheel with one or more rows of sockets ending beneath at the entrances of the different helicoidal grooves of the cylinders, tubes starting from the funnel and ending beneath at the different rows of sockets, and means actuated by a moving part of the machine to introduce'balls into the grooves at definite intervals.

Signed at Paris, France, this 4th day-of March, 1898.

AUGUSTE HENRI DUPEYRON.

EDOUARD ALPHONSE PHALEMPIN. Vitnesses:

ABEL J ULIEN, CLORIS PIERRE FRANCIS OLERC. 

